KSP PERFORMANCE wheel spacers 6x139.7 1.5in — forged hubcentric 77.8mm bore, 4pcs for Ram 1500 & Jeep Grand Wagoneer

KSP 1.5-inch forged, hubcentric wheel spacers adapt 6x139.7 wheels to 77.8mm hubs on Ram 1500 (2019–2026) and Jeep Grand Wagoneer (2021–2026) for improved fitment and stance.

These KSP PERFORMANCE spacers are engineered to move wheels outward by 1.5 inches, solving fender clearance and upper control arm rubbing while keeping wheels perfectly centered on the hub. Machined from forged 6061-T6 aluminum and fitted with heat-treated 10.9-grade bolts, the kit emphasizes durability, precise fit, and a smoother driving feel compared with many cast alternatives. The hubcentric lip aligns with a 77.8mm factory hub to minimize vibration, and the bolt-on installation is straightforward for anyone familiar with basic wheel service.

Will these spacers eliminate rubbing on my Ram 1500 during suspension movement?

Yes — for many owners, moving the wheel 1.5 inches outwards resolves contact between the tire and the upper control arm or fender flare. Because the spacer shifts the wheel’s mounting face, it increases clearance at commonly rubbing points without changing tire size.

• 1.5-inch offset increases distance between tire and suspension components
• Forged aluminum maintains structural integrity under load
• Check factory stud length—excessive stud protrusion may require trimming
• Torque spec: 85–95 ft·lb for secure installation

How does the hubcentric design affect ride quality and vibration?

These spacers feature a machined lip that centers the wheel on the factory hub bore, which reduces the chance of wheel runout and associated vibrations at highway speeds. Proper hubcentric seating preserves the wheel-to-hub contact that manufacturers design into OEM setups.

• 77.8mm hub bore matches factory hubs for reliable centering
• Hub-centric fit minimizes high-speed shaking compared to non-centered spacers
• Even clamping distributes load across the hub and wheel mounting surfaces

Are these spacers strong enough for heavy-duty truck use?

Yes — KSP uses forged 6061-T6 aluminum for the spacer body and supplies heat-treated 10.9-grade bolts to secure wheels, offering higher toughness than typical cast parts. The kit is intended for street and light-duty towing/hauling when installed and torqued correctly.

• Forged aluminum resists cracking better than many cast alternatives
• 10.9-grade bolts provide increased shear and tensile strength
• Recommended torque range: 85–95 ft·lb for the lug studs
• Inspect factory stud length before installation; cut if over 38mm exposed

What fitment and installation details should I check before buying?

Fitment depends on bolt pattern, hub bore, and stud thread size: this kit is 6x139.7 (6x5.5) with a 77.8mm center bore and M14x1.5 lug studs. Confirm your truck’s hub diameter and factory stud length to ensure compatibility and safe installation.

• Confirmed fit: Ram 1500 model years 2019–2026 and Jeep Grand Wagoneer 2021–2026
• Studs: M14x1.5, check maximum exposed length before installation
• If factory studs extend beyond 38mm, trimming is required for safe fit
• Torque wheels to 85–95 ft·lb and recheck after initial road miles

Who is this for: These spacers suit Ram 1500 and Jeep Grand Wagoneer owners who want to correct rubbing, widen their truck’s stance, or achieve a flush wheel fitment without changing wheel offsets or tires. They’re aimed at drivers who prefer durable forged components and a hubcentric solution to preserve ride smoothness. If you need a bolt-on, reversible way to gain clearance and a more aggressive look while maintaining OEM-style centering, this KSP PERFORMANCE 1.5-inch spacer kit is a practical option. Remember to verify hub bore, stud thread, and stud length before purchase and follow the recommended torque procedure for safety.